具有暗物质生成有效场论的复合希格斯模型中的暗物质
Dark matter in composite Higgs models with a scotogenic EFT
浏览论文内容
中文总结 AI 辅助
研究具有费米子紫外完备性的复合希格斯模型中的暗物质，通过残余\(\mathbb{Z}_2\)对称性确定暗物质候选者，以\(\mathrm{SU}(6)/\mathrm{Sp}(6)\)陪集模型为例，用MCMC研究参数空间，发现自旋 - 1共振作用并探讨LHC信号特征。
中文摘要 AI 辅助
我们讨论了一类具有费米子紫外完备性的复合希格斯模型，其可解释暗物质遗迹密度。所得低能理论类似于所谓的暗物质生成模型。残余的\(\mathbb{Z}_2\)对称性意味着一个赝南布 - 戈德斯通玻色子是稳定的，因此是可行的暗物质候选者。以基于\(\mathrm{SU}(6)/\mathrm{Sp}(6)\)陪集的模型为例，原则上有四个暗物质候选者，但只有三个能产生与观测一致的遗迹密度。我们进行马尔可夫链蒙特卡罗研究以探索有效理论的可用参数空间，发现自旋 - 1共振在很大一部分参数空间中起重要作用。最后，我们评论了该模型类在大型强子对撞机上可能的信号特征。
英文摘要
We discuss a class of Composite Higgs models with a fermionic UV completion that can explain the dark matter relic density. The resulting low-energy theory resembles so-called scotogenic models. A residual $\mathbb{Z}_2$ symmetry implies that one of the pseudo-Nambu-Goldstone bosons is stable and therefore is a viable dark matter candidate. As a concrete example, we take a model based on the $\mathrm{SU}(6)/\mathrm{Sp}(6)$ coset, which in principle contains four dark matter candidates. However, only three of them can produce a relic density consistent with observations. We perform a MCMC study focusing on dark matter observables to explore the available parameter space of the effective theory. In particular, we find that spin-1 resonances play an important role in a substantial part of the parameter space. Finally, we comment on possible LHC signatures of this model class.
